78923340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:572

約数の個数: 144

約数和(自身を含む): 257886720

約数和(自身を除く): 178963380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 47, 57, 60, 76, 90, 94, 95, 114, 141, 171, 180, 188, 190, 228, 235, 282, 285, 342, 380, 423, 470, 491, 564, 570, 684, 705, 846, 855, 893, 940, 982, 1140, 1410, 1473, 1692, 1710, 1786, 1964, 2115, 2455, 2679, 2820, 2946, 3420, 3572, 4230, 4419, 4465, 4910, 5358, 5892, 7365, 8037, 8460, 8838, 8930, 9329, 9820, 10716, 13395, 14730, 16074, 17676, 17860, 18658, 22095, 23077, 26790, 27987, 29460, 32148, 37316, 40185, 44190, 46154, 46645, 53580, 55974, 69231, 80370, 83961, 88380, 92308, 93290, 111948, 115385, 138462, 139935, 160740, 167922, 186580, 207693, 230770, 276924, 279870, 335844, 346155, 415386, 419805, 438463, 461540, 559740, 692310, 830772, 839610, 876926, 1038465, 1315389, 1384620, 1679220, 1753852, 2076930, 2192315, 2630778, 3946167, 4153860, 4384630, 5261556, 6576945, 7892334, 8769260, 13153890, 15784668, 19730835, 26307780, 39461670, 78923340]

約数ペア:

[(1, 78923340), (2, 39461670), (3, 26307780), (4, 19730835), (5, 15784668), (6, 13153890), (9, 8769260), (10, 7892334), (12, 6576945), (15, 5261556), (18, 4384630), (19, 4153860), (20, 3946167), (30, 2630778), (36, 2192315), (38, 2076930), (45, 1753852), (47, 1679220), (57, 1384620), (60, 1315389), (76, 1038465), (90, 876926), (94, 839610), (95, 830772), (114, 692310), (141, 559740), (171, 461540), (180, 438463), (188, 419805), (190, 415386), (228, 346155), (235, 335844), (282, 279870), (285, 276924), (342, 230770), (380, 207693), (423, 186580), (470, 167922), (491, 160740), (564, 139935), (570, 138462), (684, 115385), (705, 111948), (846, 93290), (855, 92308), (893, 88380), (940, 83961), (982, 80370), (1140, 69231), (1410, 55974), (1473, 53580), (1692, 46645), (1710, 46154), (1786, 44190), (1964, 40185), (2115, 37316), (2455, 32148), (2679, 29460), (2820, 27987), (2946, 26790), (3420, 23077), (3572, 22095), (4230, 18658), (4419, 17860), (4465, 17676), (4910, 16074), (5358, 14730), (5892, 13395), (7365, 10716), (8037, 9820), (8460, 9329), (8838, 8930)]